code: def run(self):
      if self.w.has_started:
          print(f"State: {pretty_state(self.state)} \n")
      self.w.run()
  
file_path: pytorch-lightning/docs/source-app/core_api/lightning_app/app.py
imports: from lightning.app import LightningWork, LightningFlow, LightningApp
  from lightning.app.utilities.app_helpers import pretty_state
label_desc: Use image node_id 2 for calling the Flow obj's underlying member method code with example usage: obj.run() without return types